We need help. If you know please walk me through. We will be arriving in Terminal 1 by Korean Airlines midnight in July/2016. We have 4 hours window to connect our flight via Cebu Pacific in Terminal 3 at 4 AM. We want to take the free shuttle bus service. Can someone please walk me through from the beginning when we pick up our baggages and how to proceed to the shuttle bus waiting area in Terminal 1? . We will not take a taxi. Thank you very much for your help.